I think you need the "event" transform (@EVN -- see SHOW TRANSFORMS).
let a = sin(I/13)You'll note that the @EVN transform increments each time that an "event" of crossing the value 0.4 occurs.
plot/vlim=-1:6 a[i=1:200]
plot/over a[i=1:200@evn:0.4]
- steve
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R Prabowo wrote:
Hai Steve and ferreters,--I have latitude-time data (40s-40N; 1-jan:31-dec). I can find the maximum/ minimum values of the data in each days (using y=40s:40n@max). Thing that I to do is to catch the latitude values every time the maximum values occur in each day.
Is any one can help me out? Thank you very much.
Mulyono
--
Mulyono R. Prabowo
School of Geography and Environmental Science
Monash University,
PO box 11A, Clayton, Victoria
AUSTRALIA, 3800
Telp : +61 3 9905 9992
Fax : +61 3 9905 2948
e-mail: rmpra2@student.monash.edu.au
Steve Hankin, NOAA/PMEL -- Steven.C.Hankin@noaa.gov
7600 Sand Point Way NE, Seattle, WA 98115-0070
ph. (206) 526-6080, FAX (206) 526-6744